Tuesday, 11st Sept, our instructor, Cikgu Haji Kula demonstrated on how to weld 'running bed' on the workpiece.
By using a welding torch, the flame is produced from two different types of gas which are acetylene gas (Red) and oxygen gas (Blue).
First, make sure before your enter wherever workshop, safety must be worn, used your personal protective equipment such as safety goggle before you to start doing works. Turn on a little bit of the acetylene gas and test it at the back of your hand wherever the gas is coming out from nozzle. Then, use the spark gun to ignite the flame and turn on the oxygen gas to get a neutral flame for multipurpose welding.
To weld running beds on a workpiece, first, melt the metal from either edge of the workpiece. Since we had told to practice three times, start from right to left, leftward direction . As soon as the metal starts melt, move the torch toward in a suitable speed and you can use melt motion either a circular or straight toward the molten metal. Make sure the width of the running bed is approximately equal all the way.
lastly, this is the result of example of my colleagues that have done during his or her practice =)
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